Heltec LoRa V3 development board battery with connector. 
No soldering necessary, just plug and play. 
This battery is compatibile with the listed case. 

3.7V 600mAh Lithium Polymer ?(Lipo) Rechargeable Battery, with 2 pin Connector for HELTEC V3 dev board specifications:

Model: 503040
Type: Lithium battery
Capacity: 600mAh
Rechargeable: YES
Charging Voltage: 4.2V
Rated Voltage: 3.7V
Dimensions(L*W*H): About 40x30x5mm
 


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